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April 25, 2026DiagnosticsOpen Access

Radiation Dose Evaluation in Pediatric Patients Undergoing Repeated Brain Computed Tomography Examinations

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Authors

MAMohammad AljamalNANoor AbuasbiAGAwadia Gareeballa

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Overview

Retrospective trial assesses radiation exposure in children receiving repeated brain CT scans, highlighting dose optimization issues.

Key Points

  • The study aims to evaluate radiation doses in pediatric patients undergoing repeated brain CT scans and adherence to imaging protocols.
  • Retrospective cross-sectional study among 177 patients aged ≤5 years who had two or more brain CT examinations.
  • Data collected through the hospital Picture Archiving and Communication System (PACS), including demographics and dose indicators.
  • Comparison of effective dose (ED) to estimated doses based on pediatric CT protocols.
  • CTDIvol values ranged from 8.9 to 51.7 mGy and DLP values varied from 177 to 1310 mGy.cm, indicating wide variation in scan parameters.
  • Cumulative ED significantly increased with the number of repeated scans (p < 0.001).
  • Median doses in children under one year exceeded those in older children, implying a higher risk for younger patients.

Cite This Study

Aljamal et al. (2026) studied this question.

synapsesocial.com/papers/69ec5ae988ba6daa22dac751https://doi.org/10.3390/diagnostics16091265
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Analysis of Contrast-enhanced CT Radiation Dose in Children2026
  2. 2Dose Estimation for the European Epidemiological Study on Pediatric Computed Tomography (EPI-CT)2021 · 30 citations
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  4. 4Assessment of Radiation Doses for Paediatric Head, Chest, and Abdominopelvic Computed Tomography Examinations in a Teaching Hospital in Ghana2025
  5. 5Factors Associated With CT Scan Repetition in Pediatrics and Its Relationship With Cancer Risk: A Systematic Review and Meta-Analysis2026 · 1 citations